MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The sample was detected as malicious by ClamAV and an ML classifier, indicating a high likelihood of malicious intent. It contains a link farm pointing to multiple external URLs, some hosted on compromised WordPress sites, suggesting an attempt to redirect users to malicious content. The presence of embedded URLs and the PDF_SEO_DISPOSABLE_LINK_FARM heuristic further support the conclusion that this PDF is designed to distribute or facilitate access to malicious sites.
Machine Learning
- Nyx PDF Classifier malicious score 0.8255
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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PDF differential parser failed info PDF_DIFFERENTIAL_PARSE_FAILEDThe cross-check parser (pdfminer.six) failed on this file: PDF differential parser failed: PDFSyntaxError. Static heuristics still ran and any of their findings above are valid; only the differential cross-check signal is missing.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL https://inwebjor.ru/uplcv?utm_term=bus+ultimate+simulator+mod+apk PDF link annotation
- http://zlhk.ru/upload_picture/file/84106819273.pdfIn PDF document text
- http://saltokisport.com/uploads/files/fanunewoxawoboxefojumasaw.pdfIn PDF document text
- https://media-get.ru/userfiles/files/tubevudegejekasafez.pdfIn PDF document text
- https://www.sgestrecho.es/wp-content/plugins/formcraft/file-upload/server/content/files/161345717e3ac2---vexefawafi.pdfIn PDF document text
- http://www.prodomasa.com/ckfinder/userfiles/files/44019973837.pdfIn PDF document text
- http://origo.ws/userfiles/file/genufuvogibodiwi.pdfIn PDF document text
- https://www.syah.org/wp-content/plugins/super-forms/uploads/php/files/dcce42b174698e23d7c621b9ed32ed1a/widemadutoga.pdfIn PDF document text
- http://investin-khj.ir/ckfinder/userfiles/files/zibozina.pdfIn PDF document text
- http://studioarclab.eu/userfiles/files/gizaxusolebawuvupozirig.pdfIn PDF document text
- http://autoset66.ru/admin/ckfinder/userfiles/files/nixitaxisovusuz.pdfIn PDF document text
- http://skkl.cn/filespath/files/20210904000308.pdfIn PDF document text
- https://g4m3s-4p1-12s1.com/contents/files/dojorexojibifug.pdfIn PDF document text
- http://discus-rus.ru/upl/file/xanaf.pdfIn PDF document text
- http://www.uvhk.com/wp-content/plugins/formcraft/file-upload/server/content/files/16137890ee4613---77164245292.pdfIn PDF document text
- http://konberdbio.com/upload/files/15586219691.pdfIn PDF document text
- http://najlepsietorty.sk/uploads/fck/file/45756489823.pdfIn PDF document text
- https://travellifeafrica.com/ci/userfiles/files/22561840078.pdfIn PDF document text
- http://tdsns.ru/userfiles/file/riganipore.pdfIn PDF document text
- http://cgt-fo-csc.fr/wp-content/plugins/formcraft/file-upload/server/content/files/1612f6a506920f---6277827248.pdfIn PDF document text
- http://getampedmag.com/ckfinder/userfiles/files/vomanolujezonuk.pdfIn PDF document text
- https://mimpidia.com/contents/files/tofuxebuj.pdfIn PDF document text
- https://viscom.bg/uploads/wysiwyg/files/vimegusofadizipiguge.pdfIn PDF document text
- http://evaemlak.com/userfiles/file///zonulugosapoz.pdfIn PDF document text
- https://civilkontroll.hu/uploads/file/40511322978.pdfIn PDF document text
- https://lrsdev.com/userfiles/file/99111269846.pdfIn PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000da84.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xDA84 | 19204 bytes |
SHA-256: f0e9c7e56b5a529464b416982842722d6982f09230892864204e33d8a446cd55 |
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font_01_sfnt_off00010caa.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x10CAA | 10696 bytes |
SHA-256: 2c71c09a77cd6a91ffeed1d646694a081e64c35bfba23ba99ce18811ed383636 |
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font_02_sfnt_off00012543.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12543 | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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